DWL-650 & Kismet [was Re: Orinoco Wireless Card and Monitor Mode w/
Kismet - No Longer Working?]
Alan B. Clegg
alan at clegg.com
Tue May 25 08:06:36 PDT 2004
What I've discovered is the following:
By default, Kismet prints out the error as given:
Source 0 (prism2source): Enabling monitor mode for radiotap_fbsd_b source interf
ace wi0 channel 1...
Source 0 (prism2source): Opening radiotap_fbsd_b source interface wi0...
WARNING: pcap reports link type of EN10MB but we'll fake it on BSD.
This may not work the way we want it to.
since datalink_type=pcap_datalink(pd); does actually return DLT_EN10MB.
HOWEVER, inserting code to enumerate available link types produces:
EN10MB (Ethernet) IEEE802_11 (802.11) IEEE802_11_RADIO (802.11 plus BSD radio information header)
[display code stolen directly from tcpdump]
Farther down in Kismet, the datalink is forced to DLT_IEEE802_11_RADIO as
(void) pcap_set_datalink(pd, DLT_IEEE802_11_RADIO);
This is all fine and good, but does appear to show some change in the
way data link types are returned to pcap (perhaps?)...
Now, my problem. I have an up-to-date CURRENT system and all seems
to work well, with one exception. When started, kismet_server proceeds
to eat all available CPU without producing the correct located networks.
I ran kismet (from ports) directly on a 5.2.1 (from ISO) install and
it did not display this behavior (I'm working on putting together
another system to try to reproduce the problem).
Might anyone have a clue as to where I should start looking to see
what is going on?
I'd really like to retire my Linux box that I use for wardriving, but...
We have shared the incommunicable experience of war. We felt, we still
feel, the passion of life to its top. In our youths, our hearts were
touched by fire. -- Oliver Wendall Holmes
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